package command;

/**
 * @Author liangliangzhao
 * @data 2023/4/17 9:54
 */

public class LightReceiver {
    public void on(){
        System.out.println(" 电灯打开了...");
    }
    public void off(){
        System.out.println(" 电灯关闭了...");
    }
}
